Home / 74,171.03-111,259.61-21,580.51

Finding the Fourth Proportional to 74,171.03, 111,259.61 and 21,580.51

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Solution

The fourth proportional to 74,171.03, 111,259.61 and 21,580.51 is: 32,371.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,171.03 : 111,259.61 = 21,580.51 : x
  2. Step 2: Convert to fraction form
    74,171.03/111,259.61 = 21,580.51/x
  3. Step 3: Cross multiply
    74,171.03x = 111,259.61 × 21,580.51
  4. Step 4: Simplify right side
    74,171.03x = 2,401,039,126.20
  5. Step 5: Solve for x
    x = 2,401,039,126.20/74,171.03
  6. Step 6: Final answer
    x = 32,371.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.